Traction power operated winch



June 27, 1944. M B|QDER$EN 2,352,250

TRACTIO N POWER OPERATED WINCH Original Filed m 27, 1940 4 Sheets-Sheet 1 June 27, 1944." v MLBRQDERSEN 2,352,250

TRACTION POWER OPERATED WINCH Original' Filed May 27, 1940 4 Sheets-Sheet 2 June 1944- M. 'M. BRODERSEN' 2,352,2 0

TRACTION POWER OPERATED WINCH 4 Sheets-Sheet Original Filed May 27, 1940 June 27, 1944. M. M. BRODERSEN 7 2,352,250

' TRACTION POWER OPERATED WINCH Original File d May 2'7, 1940 4 Sheets-Sheet 4 Patented June 27, 1944 UNITE o sures FATE or F u: E

2352,250 TRACTION POWER OPERATED WINCH Max M Brodersen Alhambra} Califl, assigiioito The Slusser-McLean Scraper Company," Sidney;- ohie; a corporation Ohio" Original application May 2-7, 1940, Serial N6; 337,466: Divided-arid this application June 22,

1942; Serial No. 447-,908

7 Claims:

on wheeled carriages and are drawn over" the" ground surface by'means of a tract'o'rlike, for" example, the traction power operated scraper shown in my application for Letters-Patent filed May 2'7, 1940; Serial No. 337,466; and sinc'is'sued as Patent No; 2301516, the present application being a division ofsaid earlier application-.-

The main obj ect of "my invention is -to provide a wheeled carriage for-'- a vehicle; said-carriage having a cable winch incorporated'therein which may be'operate'd by traction' as'the vehicle is drawn over'th'e ground-surface; the'e'r'itire winch mechanism being contained within said wheeled carriage, with cable 'meansconnecting said vt in'ch' to any desired device for controlling it's operation and with control means extending from said winch mechanism to the tractor operator's posi-' tion for convenient mariimilation. v

Another object is to incorporate the cable winchin a'wheeledcarriag ofthe caster type and to arrange the cable meansfin "such a manner that as the carriage swivels when theimplement is making a turn the-incidentalmoveinent of the cable is reduced to a'minimum 'thuspreventingundue disturbance 'of thecablesettingifora' given operation. v A furth'er object is to provi'deatra'ction'power operated Winch which is compaet; light in Weight and capable of easy and instantaneous "action to facilitate the controlling of its operation we fine degree of accuracy'y'etis simplaand'ru'gged in construction thusre'ducing maintenance' toa minimum;

Withthese and other objects View, the 'in vention consists in "the" combination, correlation," and; construction of parts, members and features which will .be"described in the specification and will be finallypointd' outin the claims.

R f rrin to the drawings: Figure '1 isa side 'elev'ationofan earth scraper embodying my invention;

Figure'Z'isan enlarged fragmentary side elevation; partly in section, -of' the frontwheeledcarriageshowing'the details of the traction operated winch.

Figure 3 is a section taken on line 33 in Figure'2'.

Figure '4 is an enlarged'secti'on taken on line 4 4 mnigurez; a p

Figure 5 is an enlarged section taken on line 5'-5"in"'Fig'ure 2.. v a, g

FigurefS" is a section taken On line'B -S in Figure 4 showing the'nutfal position or the brake and clutch controllever as-used when' the scraper is performing anyone of its various operations;

Figured is-a view similar to; Figure 6 showing the brake andclutch control lever in the clutch operating position t or transmitting traction power; from thewheelto the cabledrum for-winding thecable. H I w Figure 8' is-a view similar-t0 Figurefishowing the brake andclutchcontrol lever in the brake releasing position for unwindingthe cable from the drurn. s

v The invention exen -plified in the drawings in one ofits-p-ractical forms of embodiment-comprises a front wheeled carriage indicated general- 1y at 20 in which'is' incorporated a traction operat'ed cable; winch-adapted tocontrol a; scraper of the hauling type; It; is understood however, thata tractionoperated winch off this invention may. be used in anyother type ofvehicleinplaceottheusual engine or' motor operated winch:

The scraper illustrated in the drawings comprises a front tramesection generally indicated at 2| and a'rear iramesection indicated 815*22; which are hinged'ly connected together by pivot pins 23 The iront end -offrame section- -21 is supported on the; front wheeled carriage 28 and the rear' end-of --framesection 22 is supported on a rearwheeled carriage fl.- V

A lever mechanism is provided ior raising and lowering-thef ameof;the scraper atthe hinge 23. Saidqnechanism includes a- 1ever-25--pivotally'" mounted on the frontframe section 2| as shown at 26. The rear end-cfthe lever 25" is associated-with the rear-framesection 22 by a pin and-slot connection- 21 and the'front end of lever 25 is proyided'witha pulleyblock fl: A cable 29, dead ended as at'- 30 -on; the lever 25, is reaved between pulley block :28 on the lever 25 and a pulley block 3| "at the front oi;frame section 21 I then passed througha swiveled pulley 3Z'andconnected-tea winch-drum as will be described; subsequently;

Z Byimparting-a pullingjorce -to the'cable 29 a blocl; and tackleeffect is obtained between the pulleys 28 and 3l*which causes the-lever 25 "to impart raising 1 movement "to the scraper frame and by releasing cable 29 said frameis loweredby r v vs .s

A scraper bowl 33-is tiltably supported at its front end on the rear fi'amesection 22 by meansof 'a link 34 at each side thereof. The rear end of the bowl 33 isguided for vertical movement by means of a roller;35 at each lower rear corner of the bowl engaginga verti'cai channel 36at each sideof the frame structure 22: The rear end of bowl 33 is also provided with a pulley block 31 which is positioned directly below another pulley block 38 on the rear frame structure 22. A closure 39, for the receiving end of the bowl 33, is hinged on the frame pivot pins 23 and is provided with a pulley at the front end thereof.

A cable 4|, dead ended on the frame structure 22 as shown at 42, is reaved between the pulley block 38 on said frame structure and the pulley block 31 on the bowl 33, said cable is then passed over an idler .pulley 43 at the front en'd'of frame section 22, under the pulley 40 on the bowl closure 39, over another idler pulley 44 on the front frame section 2|, over an idler pulley in the pulley block 3|, then through a swiveled pulley 45 and connected to a winch drum as will be described hereinafter.

The opening and closing of the bowl closure 39 and tilting of the scraper bowl 33 is controlled by pulling or releasing the cable 4|. 7

The wheeled carriage 20 is of the caster type and includes an inverted U shaped frame member 46 comprising a pair of spaced-apart side members 41 which are secured at their upper ends to a cross member 48. The cross member 48 is a horizontal plate and is provided with a tubular spindle 49 which extends upwardly from the top of the cross member 48 and is journaled in a bearing 50 in the front end of the frame section 2|. The bearin -50 is constructed by cutting out round holes in the upper and lower plates 5I and 52 respectively of said frame section and interposing between said upper and lower plates a tubular sleeve 53 which forms the wall of the Ibearing 50. A disk 54 is secured on the top of the tubular spindle 49 by means of bolts 55 passed through the disk 54 and cross member 48. The disk 54 and cross member 48 cooperate with the upper and lower plates 5I and 52 to serve as retaining flanges for the spindle 49. The side members 41 are reinforced by means of a transverse plate 56 welded to the rear edges of the side members 41 and to the underside of cross'member 48, as may be seen in Figure 2.

The lower ends of side members 41 carry an axle 51 on which is journaled a wheel 58 which may be of any suitable type. However it is preferred to use a rubber tired wheel as illustrated in the drawings.

The wheel 58 is positioned to the rear of the vertical axis of the spindle 49 thereby effecting a caster like action in the carriage 20 to facilitate the trailing of the scraper behind atractor.

Connected to the side members 41 of the carriage 20, as shown at 59, is a bifurcated hitch member 60 which is adapted for connection to a tractor in the usual manner.

The axle 51 is stationary and comprises a shaft 6| supported in holes 62 at the lower ends of side members 41. A spacer sleeve 63 is mounted on the shaft 6| and is clamped securely between the side members 41 by means of nuts 64 which are screwed on the threaded ends of the shaft 6|. The nuts 64 may be of the castellated variety so that they may be retained in the tightened position by means of the conventional cotter pins 65 (see Figure 4).

The wheel 58 includes a disk portion 66 carrying at the outer periphery thereof a tire rim 61 on which a pneumatic tire 68 1s mounted in the usual manner.

The wheel disk 66 is provided with a hub 69 which extends outwardly from both sides of said disk. The hub 69 is counterbored at each end to provide retaining shoulders -10 for anti-friction sleeve 63. Retainer rings 12 are positioned on the sleeve 63 to maintain the anti-friction bearings in place and said retainer rings 12 are held in position by means of nuts 13 which are screwed on the threaded portions 14 of the sleeve 63. The retainer rings 12 are grooved and provided with packing material, as shown at 15, to retain bearing lubricant and exclude dirt.

The wheel disk 66 is also provided, at each side thereof, with outwardly extending annular rims 16 in which the inner wall surface is of con- 'ical shape to cooperate with cone clutch elements which will be described subsequently.

' member 41.

Rotatably mounted on each of the two outwardly extending portions of the wheel hub 69 is a drum member 11. The hub portion of each drum member is bored out as at 18 and has a bushing 19, of anti-friction metal, pressed therein to facilitate rotation on the outer periphery of the hub 69.

Each of the two drum members 11 are provided, at the inner ends, with cone elements which may be surfaced with suitable friction producing material, as indicated at 8I. Each cone element 80 is adapted for engagement with the corresponding conical rim 16 on the wheel 58. The intermediate portion of each drum member 11 is provided with a cable drum 82 having inner and outer cable retaining flanges 83 and 84 respectively. The outer portion of each drum member is provided with a brake drum 85 which is an integral part of the outer cable drum flange 84.

The outer ends of the drum members, hubs are provided with inward flanges 86 which are counterbored as at 81 for rotatably engaging flanges 88 of sleeves 89. The flanges 88 are maintained within the counterbores 81 by means of threaded retainer rings 90. The sleeves 89 are provided with internal threads for engagement with threads 9| atthe ends of the axle sleeve 63. The threaded sleeves 89 are also provided with operating handles 92 which are clamped to said sleeves as at 93 and extend forwardlytoward the tractor for easy reach of the operator.

Associated with the brake drums 85 are brake mechanisms 94. Inasmuch as each of the two brake band mechanisms are identical in construction the following description will be directed to one of said mechanisms and similar parts in the other mechanism will be given the same reference numerals in the drawings.

The brake band mechanism 94 is of the self energizingtype and includes a brake band 95 lined on the inner surface with conventional brake lining 96. The brake band 93 encircles amajor portion of the brake drum periphery and is arranged so that the gap between the brake band ends is positioned at the topof the brake drum. The rear end of thebrake band 93 is pivotally connected to the forward end of a horizontal link 91 as at 98. The rear end of the link 95 is Divotally connected as at 99 to an adjusting bolt I00 which is passed through a suitable hole in a lug IOI which extends inwardly from the side The bolt I00 is adjustably maintained in position by nuts I02 tightened, against the opposite faces of the lug I0 I.

The front end of brake band 95 is pivotally connected as at I03 to a downwardly extending arm I 04 of a bell crank lever I 05. The bell crank lever I05 is pivotally mounted as at I06 on the inner face of the side member 41 and is provided-with a rearwardly extending arm I01. A vertically positioned tension spring I08 is connected at its 75" lower end to the rear end of the arm I01 and its bearings H which support the wheel 58 on the upper end to a depending lug lll9'on the bottom face of the cross member 48. The tension spring [0811011112113 maintains the brake band 95 tightenedagainst the periphery of the brake drum 85.

The bell crank lever I95 is provided with a for wardly extending pawliHll adapted for engagement with a roller HI mounted on the clutch control lever 92. I

A tension spring H2 isconnected at one end to the clutchcontrollever '92 and at the other end to an-linwardly extending lug H3 on the side member 41. The spring H2 normally urges the clutch control lever 92 upwardly so that the roller .bears against the pawl I ll] of the bell crank lever I95 (see Figure 6). I The clutch control lever spring H2 is lighter in tension than the bell crank spring I08 which permits the roller H I to bear against pawl H 9 of the bell crank I without releasing the brake band 95.

' Each of the side members 41 are provided with an inwardly extending bracket I M which is positioned below the cross member 48 to provide space for swivelably mounting a pulley H5 between said bracket H4 and cross member 48. The pulley H5 is journalled on a shaft H6 supported in a bracket |I| which is provided with upper and lower trunnions I I8 and I I9 journalled in the cross member 49 and bracket H4 respectively, as may be observed in Figures 2 and 3.

The bowl and bowl closure controlling cable 4| is passed from the swiveled pulley 45, on the left side of the scraper as viewed in Figure 3, through the swiveled pulley H5 to the cable drum 82 on which it is wound when said drum rotates in the clockwise direction as viewed in Figure 2.

The frame raising and lowering cable 29 is passed from the pulley 32, on the right side of the scraper, through the swiveled pulley H5 to the cable drum 82 on which it is wound similar to the cable 4|.

The two swiveled pulleys H5 are positioned near the vertical axis of the carriage swiveling spindle 49 so that pulling one cable and slacking the other is reduced to a minimum when the carriage swivels as the implement negotiates a turn. Thus reducing disturbance of the set position of the bowl to a minimum.

The operation of the traction power operated winch is as follows:

While the scraper is performing any one of its operations like, for instance, scraping or digging, load carrying, dumping, leveling, etc., the control levers 92 are held in the neutral position by the influence of the springs I I2 which cause the rollers I I I on levers 92 to bear against the pawls I II], as illustrated in Figure 6. When the levers, 92 are in this neutral position, the clutch cones 80 are out of engagement with the clutch'rings 16 on the wheel 58 so that said wheel rotates freely on the axle sleeve 63. Due to the weight of the bowl and of the frame, cables 4| and 29 respectively, have a tendency to unwind from the cable drums. As the cables unwind the cable drums are rotated in the anti-clockwise direction, as viewed in Figure 6. The brake band mechanism 94 is self-energizing by the anti-clockwise rotation of brake drums 85 so that the brake bands 95 automatically tighten about the brake drums 85 thus preventing anti-clockwise rotation of the cable drums and thereby maintaining the bowl and the frame in the set position.

When it is desired to raise or tilt the scraper bowl the right or left lever 92 respectively, is pushed down as shown in Figure '7. The downward movement of lever 92 rotates the sleeve 89 which under the influence of the thread 9| on axle sleeve 63 pushes the drum member 11 inwardlyxuntil the clutch cone engages the clutch ring 79 on the wheel 58,.thus connecting the cable drum with the wheelfor clockwise rotation therewith as the scraper is drawnover the ground surface and thereby by virtue of winding the cable on the drum, the bowl is raised or tilted.

After the-desired elevation or tilt of the bowl is obtained, the lever 92 is released to returnto. its neutralposition thereby disconnecting the clutch and stopping the winding of the cable on the drum. When the cone clutch is released the cable drum .has a tendency to rotate anti-clockwise by reason of the weight of the bowl or the frame and unwind the cable from said drum. This anti-clockwise rotation is instantaneously and automatically stopped immediately upon its inception by means of the self-energizing brake mechanism and thereby the bowl is, maintained in its elevated or tilted position.

When it is desired to lower the scraper bowl or return it to the horizontal position, the right or the left lever .92 respectively is pulled up as shown in Figure 8. The upward movement of the lever 92 causes the roller. H I to raise the pawl H0 of thebell crank lever [05 thereby swinging said bell crank lever about pivot I06 in anti-clockwise direction, as viewed in Figure 8. This movement of the bell crank lever causes the arm I!" to swing forwardly thereby releasing the brake band from engagement with the brake drumwhich permits the cable to unwind from the cable drum by reason of the weight of the frame or the bowl. As the bowl reaches the desired position, the winding of the cable is stopped by returning the lever 92 to the neutral position in Figure 6 where the brake band mechanism 94 acts to stop the rotation of the cable drum.

From the foregoing description it will be seen that I have provided by means of this invention a new and useful wheeled carriage for vehicles adapted to be drawn over the ground; that said wheeled carriage has incorporated therein a cable winch which derives its operating power from the rotation of the wheel as the vehicle is drawn over the ground surface; that the traction power may be directed conveniently and with a high degree of accuracy to any desired instrumentalities for [controlling their operation, by the operator of the tractor; and that a vehicle equipped with this traction operated winch is a complete unit within its self and requires only a simple connection to a tractor for operation.

Having thus described my invention I claim:

1. In a vehicle adapted to be drawn over the ground surface, a carriage of the caster type for supporting said vehicle, wheel means in said carriage, a cable winch supported within said carr-iage. a cable wound on said winch, and means for selectively connecting said winch to the wheel means for winding said cable by the rotation of said wheel.

2. In a vehicle adapted to be drawn over the ground surface, a carriage of the caster type for supporting said vehicle and including wheel means, a cable winch supported within said carriage, a cable wound on said winch, brake means for said winch, common control means for selectively connecting said winch to the wheel means for winding the cable and for releasing said brake to unwind said cable.

3. In a vehicle adapted to be drawn over the ground surface, a swiveled wheeled carriage for supportingsaid vehicle, attraction power operated winch supported within said carriage, a cable wound on said winch, swiveled pulley means on said carriage for. guiding the cable from said winch, said pulley means being arranged to reduce displacement of said cable to a minimum when said carriage swivels upon negotiating a curve.

4. In a vehicle supported on front and rear car riages to be drawn over the ground surface, said front carriage being of the caster type including a frame connected to the vehicle by means of a pivot having a vertical axis, a transverse axle mounted on said frame rearwardly of said vertical axis, a wheel mounted on said axle, a pair of traction operated cable winches aligned axially with said wheel and positioned one at each side thereof, a pair of swiveled pulleys mounted on said frame over which cables are passed from said winches, said swiveled pulleys being positioned near the vertical axis of the carriage pivot to reduce to a minimum the slacking or tightening of the cables when the vehicle is making a turn.

5. In a vehicle adapted to be drawn over the ground, a wheeled carriage of the caster type connected to said vehicle by means of a vertical pivot, a pair of traction operated cable winches supported in said carriage, a pair of swiveled pulleys mounted on said carriage over which cables are passed from said winches, said pulleys being positioned near the vertical axis of said pivot.

6. In a carriage for a vehicle adapted to be drawn over the ground, a traction operating winch comprising an axle, a wheel rotatably mounted on said axle, a pair of freely rotatable cable drums positioned one at each side of said wheel in axial alignment therewith and capable of longitudinal sliding movement on said axle, clutch means between the cable drums and the Wheel engageable by sliding said cable drums toward said wheel, brake means for each cable drum activated by reverse rotation of said cable drums, a lever associated with each cable drum and brake means to control the engagement of said clutch means by sliding said drum toward the wheel for winding the cable drum and to disengage said brake for unwinding said cable drum.

7. In a vehicle adapted to be drawn over the ground, a carriage of the caster type for supporting said vehicle and including an axle, a wheel rotatably mounted on said axle, freely rotatable cable drum means positioned in axial alignment with said wheel and capable of longitudinal sliding movement on said axle, a clutch between the drum means and the wheel, a brake for said drum means activated by the reverse rotation thereof, a control lever associated with said drum means and said brake to impart sliding movement to the drum means for controlling the engagement of said clutch and for releasing said brake.

MAX M. BRODERSEN. 

